backreaction

Definitions

noun physics The reaction, as a result of Newton's third law, back from a radiating gravitational wave

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We discuss the effect of Kaluza-Klein (KK) modes of bulk metric perturbations on the second Randall-Sundrum (RS II) type brane cosmology, taking the possible backreaction in the bulk and on the brane into account.

Bleeding-edge Science; don't ask me to explain these 2005
We discuss the effect of Kaluza-Klein (KK) modes of bulk metric perturbations on the second Randall-Sundrum (RS II) type brane cosmology, taking the possible backreaction in the bulk and on the brane into account.

Bleeding-edge Science; don't ask me to explain these 2005
Conclude that the backreaction on the spacetime metric creates unbounded curvature, which effectively cuts off the future development that would otherwise eventuate in CTCs.

Time Machines Earman, John 2004
The second degree of involvement, referred to as semi-classical quantum gravity, attempts to calculate the backreaction of the quantum fields on spacetime metric by computing the expectation value of the stress-energy tensor in some appropriate quantum state | Î¨ and then inserting the value into Einstein's field equations in place of Tab

Time Machines Earman, John 2004
What we can do at most is to model a "relativistic" field theory on a curved background (such as Painleve-Gullstrand BH), but this background is static and backreaction of our field theoretic degrees of freedom on it is zero.

博客李淼李淼 2009